CVE-2011-20001

A vulnerability has been identified in SIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants) (All versions < V2.0.3), SIMATIC S7-1200 CPU V2 family (incl. SIPLUS variants) (All versions < V2.0.3). The web server interface of affected devices improperly processes incoming malformed HTTP traffic at high rate. This could allow an unauthenticated remote attacker to force the device entering the stop/defect state, thus creating a denial of service condition.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://cert-portal.siemens.com/productcert/html/ssa-625789.html

Configurations

No configuration.

History

14 Oct 2025, 10:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-10-14 10:15

Updated : 2025-10-14 19:36

NVD link : CVE-2011-20001

Mitre link : CVE-2011-20001

CVE.ORG link : CVE-2011-20001

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

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